A '''bumblebee''', also written '''bumble bee''', is a member of the bee genus
'''''Bombus''''', in the family Apidae
. The brood parasite|brood parasitic
or cuckoo bumblebees have sometimes been classified as a subgenus
or genus, ''Psithyrus
'', but are now usually treated as members of ''Bombus''. This genus is the only Extant taxon|extant
group in the tribe Bombini
, though a few extinct related genera (e.g., ''Calyptapis
'') are known from fossil
s. Over 250 species of bumblebee are known.
They are found primarily in higher altitudes or latitudes in the Northern Hemisphere
, although they are also found in South America
where a few lowland tropical species have been identified. European bumblebees have also been introduced to New Zealand
Bumblebees are eusociality|social
insects which form colony (biology)|colonies
with a single queen. Colonies...